Too many connections

FILE: /www/wwwroot/www_btu_cc/Core/Lib/Core/Db.class.php 　LINE: 162

[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Db.class.php (162) DbMysqli->connect()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Driver/Db/DbMysqli.class.php (81) Db->initConnect()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Driver/Db/DbMysqli.class.php (209) DbMysqli->query(SHOW COLUMNS FROM `loowei_flink`)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Model.class.php (135) DbMysqli->getFields(loowei_flink)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Model.class.php (123) Model->flush()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Model.class.php (1174) Model->_checkTableInfo()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Model.class.php (98) Model->db(0, )
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Common/common.php (272) Model->__construct(Flink)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Loowei/Lib/Action/BaseAction.class.php (31) D(Flink)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Action.class.php (57) BaseAction->_initialize()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Common/common.php (321) Action->__construct()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/App.class.php (103) A(Index)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/App.class.php (207) App::exec()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Lib/Core/Think.class.php (39) App::run()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Common/runtime.php (242) Think::start()
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/Core/Core.php (30) require(/www/wwwroot/www_btu_cc/Core/Common/runtime.php)
[20-10-31 10:32:10] /www/wwwroot/www_btu_cc/index.php (118) require(/www/wwwroot/www_btu_cc/Core/Core.php)